Wires and halyards inside the mast still move with the rocking of the boat.
The only way to stop it is to encase the wires and halyards in something.
I read an article where one guy stuffed swim noodles into his mast to 'lock' stuff up, I don't recommend it.
You telling me that time on the cruiser didn't teach you to ignore noise and sleep when it was time to sleep? (Retired Navy)